← All endpoints
x402.agentutility.ai whois-lookup
https://x402.agentutility.ai/whois-lookup
answers 402
WHOIS API and RDAP domain lookup for agents. Returns registration date, domain age, expiration date, registrar, contacts, nameservers, DNSSEC status, EPP status codes, transfer history, and risk flags from the IANA-mandated RDAP endpoint for the domain's TLD. Optionally appends a certificate-transparency summary. Use it for domain diligence, phishing triage, brand protection, registrar checks, or
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.005
- Network
- base
- Pay to
- 0x6c0752c09e7F6fA6526fCDf40e456a159ebB5621
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 7631 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-09-06T01:15:13.308Z (23d ago)
- Category
- search
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402.agentutility.ai%2Fwhois-lookup"